Indico vs OpenAgenda

Indico is a free, open-source tool for organizing events, archiving materials, and supporting collaboration. It provides workflows for seminars, meetings, workshops, and conferences, and can bring an institute’s events together. For conferences, organizers can handle registration and abstract submission, store papers and other materials, and provide participant badges. Events use hierarchical categories, protections for resources, and roles within events. The room-booking module supports delegated management, booking approvals, and audiovisual equipment management. Indico integrates with Zoom so participants can join video conferences with a single click; listed plugins also cover PayPal payments and Amazon S3 event-file storage. It can be customized through configuration and plugins, and its HTTP Export API exposes category contents, events, rooms, and bookings. Indico is installed as a self-hosted instance. The project began in 2002, and CERN adopted it for event management in 2004 and has financed its development since. The maker describes room booking as suited to companies, research institutes, and universities.

OpenAgenda has no write-up on Specifiction yet; its figures are above.